Case for incandescent-electric-lamp sockets.



Pqfented Jui 31, 1917.

2 snsns-sutn 1.

APPLICATHJN FILED SEPT-3.1912- WITNESSES INVENTOR J. WEBER.

CASE FOR INCANDESCENT ELECTRIC LAMP SOCKETSP APPLICATION FILED SEPT-3.19I2- 1,234,935, Patented Jiily 31,1917.

" 2 SHEET$SHEET 2.

[Ill/111 WM INVENTOR A UNITED STATES PATENT- OFFICE.

JOHN VJEBER, OF SCHENECTADY, NEW YORK, ASSIGNOR TO WEBER ELECTRIC COM- a PANY, OF SCHENECTADY, NEW YORK, A' CORIEORATION OF NEW YORK.

CASE FOR INCALlDESCENT-ELECTBIC-LAMP SOCKETS.

Specification of Letters Patent.

Patented July 31, 1917.

Application filed September 3 1912. Serial No; 718,173.

i :To all whom it may concern: V Be it known that I, Jenn WEBER, a mzen of the ,United States, residing at Sche- V nectady,'county of Schenectady, and State of New York, have invented certain new and luseful Improvements in Cases for Incandesecnt-ElectricJJamp Sockets, of which the following is a specificatnzn.

- The invention relates to such improvements and consists of the novel construction and combination of parts hereinafter de- ,scriheal and sub sequentlyclaimed; Referencemdy be had to the accompany in'g drawings, and the reference characters 1narked thereonpwhichform' a part of this .sfwc'ification; Similar characters. refer t similar parts in the several figures therein. lj igure l of the drawings is aview partly inside elevation and partly-in central ver- 2 tical section of an incandescent electric lampsocket case containingmy invention.

i 'l igefl is a view-partly in .side elevation and partly in vertical cross-section of the apex-hired locking ring detached; 'Fig. 3 is a top plan view ofsaid locking ring, a V L Fig. 4 is a view partly in side elevation and partly in vertical eross-seotion of the cap detached. Fig. 5 view in side elevation 'of a broken-a w'a y portion of the sleeve.

Fig 6 is a vertical cross -section of a broken-away portion of the interlocked cap and sleeve taken, through the interengaging mechanism which locks the parts against relative rotation.

,Fig. 7 is a top plan view of the sleeve detached. i ,Fig. 1 is drawn on a smaller scale thanthe 40otherfigures, all bcingdrawn on an enlarge-d scale. 1 i V Certain ohjects'of theinvention. are .to fa eilitate the insertion ofithe sleeve within the cap of the socket; and to securely lock the sleeve a (l cap together both against separation and against rotation in numerous relative rotary positions. Other objects will appear in connection with the following description. FD Referring to the drawings wherein the innation is: shown in preferred. form, 1, is the sleeve and, 2, is the cap of the case both preferably made (of sheet-metal, the sleeve being shown provided with the usual 'keyslot, 3. v

The cap is adapted to telescopically re: 'ceire and lit the inner end of the sleeve which has near its inner end a plurality of outward projections 01' catches, 4, which may be'formed in any known manner, but

which I preferto form bytransversely sliti ting the wall of the sleeve and displacing outwardly a portion of the sleeve-wall on theinner side of said slit-to form an inclined projection terminating in a cut-metal edgc.'

'lhe 'sleeve also has near its inner end at least one outward projection, 5, which may be formed in any known. manner, but which lprcfer toforin by outwardlydisplacing a narrow strip of the wall of the sleeve between two vertical slits, whereby said projection presents cut-metal edgeson its opposite sidesi v Located within the flange, 6, of the cap is an annular sheet-metal member or ring, 7, concealed therewithin and secured therein between the introverted edge, 8, of the flange,

6, and a plurality of internal projections, 9, overhanging portions of said ring, 7.

I have shown the upper end of the ring, 7, inwardly offset at, 10 and terminating in an.upwardly disposed cut-metal edge, 11, which by reason of said offset, 10, is set in slightly from the-wall of the cap-flange, 6,

leaving a free space therebetween, said 'cutf metll edge, 11, being adapted to engage the cut-metal edges of the projections, 4, on the sleeve when the cap and sleeve are telescopically assembled to. lock the parts against separation.

The free space thus provided between, the

cap-lla11ge and the cut-metal edge, 11, serves to freely receive the ends of the projections,

4, permitting them to substantially overhang said cutinetal edge to form a most-secure lock.

of openings, 12, adapted respectively to re ceive the projection, 5, on the sleeve when the cap and sleeve are telescopically assembled, to lock them against relative rotation.

The openings, 12, may be formed in any known manner, but I prefer to form. them i The ring, 7, is also provided with a series as rectangular notches alternating with rectangular teeth on the edge of the ring, 7, as shown.

The openings thus present oppositely disposed cut-metal edges to the cut-metal edges of the projection, 5, on the sleeve.

The internal projections, 9, which hold the ring, 7, in place within the cap are preferably formed by slitting the wall of the cap and inwardly displacing the metal ad- 'acent to said slit to adapt the same to overang-the shoulder formed on the ring by the offset, 10, as clearly shown in Fig. 4.

The ring, 7, may be secured within the cap in any known manner.

I prefer, however, to slightly upset the inturned edgeof the flange, 6, into some or all of the notch-openings, 12, as shown at, 13, in Fig. 4, whereby said ring, 7, is secured against rotation within the cap,

The projection, 5, is preferably formed with an inclined or beveled end over which the inturned edge of the cap-flange can freely ride in assembling the cap and sleeve.

The cap and sleeve can be telescopically assembled by a straight-line movement or by a straight-line movement accompanied by a sli ht rotative movement.

n either case, the catches, 4, will at once interlock with theedge, 11, of thering, 7, and by. a, slight rotative movement in assembling, or afterward, the projection, 5,

i will beseated in one ofthe' notches, 12, even be at first properly though it should not alincd with said notch.

This slight rotative movement, after the 1 parts are assembled to interlock against separation, is limited to the width of a s ngle tooth onthe ring, 7, and is negligible in the use of the device.

' By havin the upper end of the ring, 7, inwardlyogset, the space inclosed by said ofi'set end is of less diameter than the space inclosed by. the inturn'ed edge, 8, of the flange, 6, which edge is inturned but slightly and to the extent of onl the thickness of the sheet-metal forming t e ring, 7.

I am thus able to inwardly offset the upper end of the sleeve, 1, as shown'at, 15, to provide the sleeve with a contracted inner end adapted to fit within the offset end of the ring, 7, the catches, 4., being formed on said contracted portion of said sleeve, 1, while the projection, 5, is tormed on a part of the sleeve which is of full diameter and adapted to fit within the inturned flange, 8, and within the apertured portion of the rin 7, as clearly shown in Fig. 6. S ubstantial clearance is thus provided for between the contracted end of the sleeve and the opening into the cap which greatly facilitates the insertion of the sleeve within the cap.

By thus offsetting the sle ve I am able to permit it to project withinthe dome, 17, of

. ing se arated from the outer the cap, if desired, as shown at, 16, in Fig. 6, wherein I have shown contained within the case a brokeuqaway part of the interior mechanism consisting of the insulating lin ing, 18, and insulating support, 1.), for the terminals with which the inlcading wires (not shown) are connected, one of said terminals, 2.), being shown provided with a binding screw, '20.

Said interior mechanism is capable of a slight upward movement within the dome, 17, without preventing the case-men'lbers from being properly assembled and interlocked.

By having the body of the sleeve of larger diameter than its innermost end, I provide a free airspace, 21, between the insulating linin ,18, and the sleeve opposite the termina s or binding-screws, if the insulating lining is employed; and ifitis not employed, I nevertheless increase the distance or airspace bctween the terminals or binding screws and the sleeve, thus adding to the Safetyof the device.

The binding-screw is located within 21 peripheral notch in the insulating support, 19.

What I claim as new and desire to secure by Letters Patent is 1. In an electric lamp-socket case, and in combination, a sleeve; and a cap adapted to telescopically receive said sleeve, said cap and sleeve having interengaging means to prevent separation comprising in part a projection on said sleeve, and a sheet-metal member contained within the cap having a cut-metal edge adapted to engage said projection on the sleeve, said cut-metal edge bep wall of the ca by a ree space adapted to receive the end of said projectiom 2. In an electric 1am combination, a sleeve; telescopically receive-said sleeve, said cap and sleeve having interengaging means to prevent separation comprising in part projections on said sleeve, and an annular metal member contained within the cap having a continuous cut-metal edge adapted to engage said projections on the sleeve, said cut-metal edge being separated from the outer wall of the cap by a wholly surrounding free space adapted to receive the ends of said projections. 0

3. In an electric lamp-socket case, and in combination, a sleeve; and a cap adapted to telescopically receive said sleeve, said cap and sleeve having interengaging means to prevent separation comprising in part pnojections on said sleeve, and an annular-sheetmetalmember contained within the cap, said projections and said annular member having mutually abutting cut-metal edges, the cut-metal edgev of said annular member being bent away from the'outer wall of the cap forming a wholly surrounding free 10s psocket case, and in and a cap adapted to pace into which the ends menses and an annular sheet-metal member con-. tamed Wltlun said cap having a continuous cut-metaledge adapted to engage certain. of said projections on the sleeve and provided with openings adapted to engage another of projections on the sleeve.

5. In an electric lamp-socket case, and in combinatioina sleeve having projections; a cap adapted to telescopically receive said ve an annular sheet-mctalinember withq cap with its inner end inwardly ofi t and terminating in a continiious cutin t3. dge'adapted to engage certain of said projections on the sleeve, said annular memher being provided with openings adapted to engage another of said projections on the sleeve.

6. In an electric lamp-socket case, and in COIlllDiIlutiOIl, a sheet-metal sleeve having portions of its well displaced to form in clined projections terminating in cutn1etal ends and another portion of its Wall dis placed to form a projection having cut-metal sides; and a cap adapted to telescopically receive said sleeve, said cap having contained therewithin an annular sheet-metal member having a continuous cdt-metal edge adapted to engage the cut-metal ends of said prO ectionS on the sleeve and being provided with series of openings having oppositely faced cut-1nctal edges respectively adapted toengage the cut-metal sides oitsaid proj ection on the sleeve.

7. An electric lamp-sockct-case compris :ing in combination, a sleeve having an end of smaller diameter than its body portion; and a cap adapted to telescopically receive said end of the sleeve, said cap having an --nd portion with an interior surface opposite, and corresponding in diameter with, the bod portion. of the sleeve, and a sepa rate mmber mounted Within the cap having, a be ring surface opposite, and correspending in diameter with, said end of the sleeve of smaller diameter than the body of the sleeve, said sleeve having means co oper.fve ivith said separate member to prevent s paration of the cap sleeve.

Ell 1 an electric lamp-socket case, and in combination, a sleeve having a contracted l; and a cap adapted to telescopically re- 've said sleeve and to fit portion thereof o. ill diameter, said cap having a contained nnnnber adapted to receive and fit the con trac .d end of the sleeve, said cap and a. portion of'said sleeve of full diameter haw ing interengaging means to prevent relative rotation,

d said cont ine'd member and the contracted end or said. sleeve having intcrengaging means to prevent separation. J

9. in an electric lamp-socket case, and in combination, a slee e having contracted end and having projections on said contractcd end and a projection on a portion of the sleeve oi? full diameter; and a cap adapted to'tclcscopically receive said sleeve,

cap having a contained annular memher inwardly oli'sct at its inner end to fit the contracted end of said sleeve and terminating in a continuous cut-metal ed e adapted to engage the projections on t 1e contacted end of the sleeve, said annular member having an apertured portion adapted to fit said portion of the sleeve of full diameter and to engage the projection thereon.

10. In an electric lamp-socket, and in combination, interior mechanism comprising in part an insulating support and a Wire'- connection terminal mounted upon. the pe' riphery of said support; a sleeve inclosing said interior mechanism having its inner end of a diameter adapted to closely fit said in sulating support and having a portion of larger diameter opposite said terminal; and a cap adapted to telescopically receive said sleeve.

11. An electric lamp-socket-case com prising in combination a pair of case-me1nhers one adapted to telescopically receive the other, the inner of said members havinga plurality of exterior circumferential hearing surfaces of different diameters, and the outer member having a plurality of interior circumferential bearing surfaces corresponding in diameter with, and adapted to fit respectively, said bearing surfaces on the innermember.

12. A case for incandescent electric lampsockets comprising in combination, a sleeve having an end portion of. smaller diameter than its body portion, and a cap adapted to telescopically receive said end ofwthe sleeve, said cap having an interior surface opposite, and corresponding in diameter with, the body portion of the sleeve, and another interior surface opposite, and corresponding 

